/* 背景图片 */
.icon {
  width: 15px;
  height: 15px;
}

.bg {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-image: url(../images/back.png);
  background-size: 100%;
  background-position: center;
}

/* 登录页面的头部 */
header {
  height: 120px;
  position: relative;
}

header .logo {
  position: absolute;
  left: 70px;
  width: 150px;
  height: 150px;
}



/* content 部分 */
.content {
  /* position: fixed;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0; */
  display: flex;
  width: 1200px;
  height: 450px;
  margin: 0 auto;
  margin-top: 30px;
  background-image: url("../images/seagull.png");
  border-radius: 15px;
  box-shadow: 20px 20px 27px #b1caf2;
  background-size: 100% 100%;
}

.content .item {
  flex: 1 0 500px;
}

/* 登录说明居中 */
.content-left {
  display: flex;
  justify-content: center;
  align-items: center;
}

.content-left .desc {
  width: 350px;
  color: #fff;
}

.content-left .desc h3 {
  line-height: 1.6em;
  font-size: 22px;
}

.content-left .desc p {
  line-height: 1.6em;
  font-size: 18px;
}

/* 右侧 */
.content-right {
  padding: 15px 40px 20px 20px;
}

.content-right .tab-nav {
  display: flex;
  justify-content: space-around;
  font-size: 25px;
  color: #033887;
}

.tab-nav .tab-title {
  padding: 0px 10px;
  border-bottom: 2px solid transparent;
}

.tab-nav .tab-active {
  border-bottom: 5px solid #033887;
}

.tab-content {
  margin-top: 20px;
  padding: 15px 50px;
  background-image: url("../images/inp.png");
  background-size: 100% 100%;
  height: 360px;
}

form .title {
  text-align: center;
  font-size: 24px;
  color: #033887;
}

.form-group {
  position: relative;
  margin-top: 20px;
}

.form-group .span-img {
  position: absolute;
  width: 25px;
  height: 25px;
  background-color: #033887;
  text-align: center;
  line-height: 30px;
  margin-top: 2.5px;
  margin-left: 1.5px
}

.span-img{
  vertical-align: middle;
  /* 图片垂直居中*/
}

.form-group .focus-border {
  width: 100%;
  height: 30px;
  border: 1px solid #e0eff9;
  background-color: #a0d5de;
  padding-left: 40px;
}

.focus-border:focus {
  outline: 2px solid #50eded;
}
.do-extra{
  display: flex;
  justify-content: space-around ;
}
.do-extra a{
  text-decoration: none;
  color: #222;
}
[type="checkbox"]{
  vertical-align: middle;
}
.rem-me{
  font-size: 16px;
}
.btn{
  width: 100%;
  margin-top: 10px;
  background-color: #033887;
  padding: 15px 0;
  font-size: 22px;
  color: white;
  border: none;
  border-radius: 7px;
  box-shadow: 3px 3px 10px #444;
}

